Royal Purple Products
Buy Royal Purple oils at STM! STM carries Royal Purple engine oil, drivetrain and gear oil, ATF automatic transmission fluid, assembly lube, grease, coolant additives and engine oil filters.
- Royal Purple Max-Tuff Synthetic Assembly Lubricant 8oz (01335) $21.84
- Royal Purple HPS Engine Oil $12.06 +
- Royal Purple Ice Radiator Coolant Additive (01600) $11.35
- Royal Purple Break-In Engine Oil (11487) $12.37
- Royal Purple High Performance Engine Oil $9.68 +
- Royal Purple XPR Extreme Performance Engine Oil 5W30 *Limited Quantity* $17.44
- Royal Purple Synchromax 1 QT Bottle (01512) *Limited Quantity* $17.36